The all-purpose app for text, video, and voice chat can now detect when people are trying to find each other in the real world and then help them meet up. Also new: stickers, video filters, and bigger ambitions at Google.

This week on Crave we explore promising food options like a pizza vending machine and a hand-held espresso machine. We get a glimpse into the beautiful, microscopic world of chemical reactions and meet Toshiba's communication android that's learning to speak sign language.